Fourteen letters on topics of perennial interest: gifts of the Spirit, discernment of the will of God, and spiritual direction. Translated from the Greek and early Syriac by Derwas J. Chitty, revised by Sebastian Brock.
- Publisher: Cistercian Publications (August 1988)
- ISBN-10: 072830080X
- ISBN-13: 9780728300804
- Language: English
- Paperback: 26 pages